词汇 | blade |
词源 | blade [OE] The common senses of Old English blæd were ‘leaf of a plant’ and ‘flat section (of an oar, sword, etc.)’; the root is Germanic. The distinction between the handle and cutting blade of a knife had developed by Middle English, and not long afterwards it became a synonym for ‘weapon’. The blade of a propeller is early 20th century. |
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